The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 2007
Filed:
Aug. 27, 2001
Takeo Miyata, Gifu, JP;
Yoshiharu Doi, Gifu, JP;
Masashi Iwami, Anpachi-gun, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
An adaptive array apparatus () that has a weight converge on an optimal value is provided. The adaptive array apparatus repeatedly adjusts the weight using predetermined calculations so as to minimize a difference between a desired signal and a combined signal which has been weighted with the weight. A parameter control unit () judges whether an adjusted weight is located closer to an optimal value than a reference value, and according to the judgment result, changes a step size which is used in the predetermined calculations performed by a reception weight calculating unit (), to determine the extent to which the weight should be adjusted. With this construction, the adaptive array apparatus can increase convergence stability and speed in calculating a weight, and the weight converges on an optimal value.